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Windows 7: SFC /SCANNOW Command - System File Checker


09 Jan 2009   #299
Brink
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 
SFC /SCANNOW Command - System File Checker

How to Repair Windows 7 System Files with System File Checker


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My System SpecsSystem Spec
12 Feb 2012   #300
garry626

Home Premium 32 bit
 
 

Hi Brink,
Downloaded the malware program thanks, but frustration still reigns on running the program as with MSE and some other programs it starts to run ok but then freezes and does not complete (Not Responding) I cannot even run scannow at boot as in your tutorial it worked once but now no longer responds !

Garry

My System SpecsSystem Spec
12 Feb 2012   #301
Brink
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Garry,

You could try scanning your system with the online Bitdefender or ESET scanner.

If that will not run for you, then you might see if you may be able to create and use a 32-bit Windows Defender Offline bootable USB flash drive to boot from and scan your system with at boot.

If you had system protection turned on, then you could also do a system restore at boot using a restore point dated before you had this issue to hopefully undo and fix it for you.
My System SpecsSystem Spec
11 Mar 2012   #302
johnk860

Windows 7
 
 
What about changes...

Having looked at the log file after a 'verifyonly' run, I noted how many 'changes' there are in my system. I find it near impossible to decide which, if any, are the result of all those security permissions granted to change system files when installing apps and programs. Hate to have to redo all that after a repair only to see them all on the next 'verify' run.
Any ideas? or am I way not-understanding what's going on here??

Thanks
My System SpecsSystem Spec
11 Mar 2012   #303
Brink
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Hello John, and welcome to Seven Forums.

If you would upload your sfcdetails.txt file from OPTION THREE, I'll be happy to take a look at it to help.
My System SpecsSystem Spec
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12 Mar 2012   #304
johnk860

Windows 7
 
 

Not required. Got much better after some investigation and moving the text file to my desktop (removed the chaff from the problem). Thanks for the offer, and thanks more for the article. Great help.
My System SpecsSystem Spec
12 Mar 2012   #305
Brink
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

That's great news John. I'm happy to hear that you got it sorted.
My System SpecsSystem Spec
15 Apr 2012   #306
SoxmisUK

W7 64
 
 
Source Files Corrupted?

Having run sfc following Brinks's great tutorial several times now, and looked at the "SFC Details.txt" I have found out that the SFC cannot replace many of my corrupted files due to the source files being corrupted..

I have run SFC from the desktop about a dozen times, and from the boot about the same amount of times, but it will repair no further due to these source files being somehow mysteriously corrupt.

The resulting message in SFC states that "Windows resource protection found corrupt files but was unable to fix some of them.." in the SFC Details text, the reason is that the source files are corrupt too.

I should point out that although there are a few corrupt/damaged files that SFC is picking up, W764 seems to be ticking over nicely and the corrupt files seem to be stuff like chinese language packs, games of chess etc. and nothing seems to be disfunctional in my daily use of the OS.

However just knowing that something isn't quite right about the system as a result of the SFC showing them up has me now set on fixing it. - Am I now up the proverbial creek without a paddle? There are quite a lot of corrupt source files in the report.

It seemed to me that if you could "Point.." SFC to a different place for those replacement system reserve files (Like you used ta cud in XP..) then maybe I could snaffle an non-corrupt copy of W764's System reserve folders and SFC could use that as it's source..

Wouldnt it be great if there were an online copy of those files that you point SFC too? - Dream on. This is Real Life.

I do prefer to repair as opposed to re-installing and if anyone has thoughts along these lines, I'd be happy to get started on thrashing a plan out to tinker with SFC's reserve files if it's even possible.. ?
My System SpecsSystem Spec
15 Apr 2012   #307
Brink
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Hello Soxmis,

If that's all that SFS found is wrong, then it doesn't seem to be anything to be worried about. Unless one knows what they are doing, trying to manually replace the unfixable files could risk causing more issues. It's just not really worth the risk unless the unfixable files are causing issues that prevent Windows from running properly.

Hope this helps,
Shawn
My System SpecsSystem Spec
15 Apr 2012   #308
SoxmisUK

W7 64
 
 
If it aint broke... Don't fix it.

Hi Shawn,

I don't know how you find the time to reply to all these posts, but sincerely, thanks for finding the time to reply to mine.

I think you have once again hit the nail on the head. I'm just going to leave it alone as the OS runs smoothly and has done for 3 years now, so if SFC finds the odd thing broke, but I never use it..

I'm letting it pass.

Many thanks.

John.
My System SpecsSystem Spec
15 Apr 2012   #309
Brink
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

You're most welcome John.
My System SpecsSystem Spec
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